Fuse puller



May 24, 1932. B. DowicK 1,859,767

FUSE FULLER Filed July 7, 1930 Patentedk May 24, 1932 UNl'run'sTATl-:s PATENT opp-'leg BENJAMIN DOWICK, OF JERSEY CITY, NEW JERSEY FUSE FULLER Application md my 7, 1930. serial No. 465,821.

v'15 adapted for manipulation of the threaded type of fuses'.v Y 1 Fig.: 2 shows an elevation, partly in section,

ofthe device adapted for manipulation of 4 fuses the terminals of which are held in the 2 circuit gap by clips. j Y' Fig. 3 shows another elevation of the device illustrated in Fig.V 2.

` Fig. 4 is a plan view of the'device shown in `Fig. 5 is a plan view of the device shown infrigs. 2

3 hallal@ 1 of the device is preferabiy made entirely of insulating material, such as bakelite or hard rubber. One end of the handle 1 carries a device 2 for manipulation, insertion, and removal of the household type of fuse 3 which is generally provided with a thread 4 and rimmed base 5, while its opposite end carries a device 6 for manipulation, insertion, and withdrawal of the cylindrical cartridge type of fuse 7 which is generally lodged in spring-clips 8 of the circuit-gap. The device 2 comprises a metallic plate 9 having a plurality of shanks 10 that are imbedded within the handle 1 to thereby secure the plate firmly to the latter, and from said plate project several members 11, preferably three in number, that are springy, configurated as shown, and provided with vertical portions 12 that are adapted to bear laterally and resiliently against the vertical walls of the base 5 of fuse 3 when the latter is set in among said members in the manner shown in Fig. 1. In the plate 9 are formed The several prong-like projections 13, upon which the base 5 of the fuse is seated when inserted in the device, or when the device is slipped over the fuse, in the manner shown.

When it is desired to insert a fuse 3 into place within its socket, it is first placed in the device as shown and becoming then manipulable with the handle 1 the fuse may be threaded into its socket by rotating'l the-handle 1 about its longitudinal axis, the members 11 bearing frictionally and resiliently against the base 5 and thereby transmitting the rotation to the fuse. Upon completion of the rotation the handle 1 may be pressed toward the base, and the projections 13 will then bear positively the fuse-thread 4 home within its socket as required. To remove the fuse from its socket the foregoing operation is reversed, i. e., the handle 1 is brought up to the fuse'and the device 2 slipped over its base 5, the handle is thenfpressed toward the base and simultaneously rotated to cause the projections 13 against the base and thereby drive to bear upon the base to initially release the fuse-thread from vits socket, and then the handle 1 is rotated for unthreading the fuse 7 and removing it. 1f desired the edges of the vertical walls 12 of members 11 may be bent inwardly as shown at 14 lto produce a firmer hole of the base 5, particularly in case the latter is serrated.

The device 6 comprises a pair of oppositely disposed hooks 15, 16, which extend from the terminal of the handle 1 and are congurated and arranged as shown in Figs. 2,3, 5. The hook 16 is provided with a shank 17 which is imbedded within the handle 1, andis preferably made serpentine as shown to insure a firmer retention and disposal of the hook in its requisite place: while the hook 15 is provided with a U-shaped shank 18 which is likewise imbeddedv within the handle, and its terminal 19. which is pointed, protrudes outwardly from the center of the handle between the two hooks.

When it is desired to insert a fuse 7 into place 1within its spring-clips 8, it is first placed in the device 6, yby means of disposing the usebetween the hooks 15, 16, as shown b v the dash and dot lines in Fig. 3, andthen partially rotating the handle 1 about its axis to the position shown in Fig. 2, whereupon the two hooks embrace the cartridge and being springy hold it firmly in position upon the handle. Simultaneously the pin 19 pierces the middle of the cartridge and thereby prevents any accidental longitudinal dislocation of the latter. The ..fuse .7 being thencompletelyfmanipulalle with thehandlelyit may be therewith conveniently inserted into the spring-clips 8 of the circuit-gap, with perfect safety to the user, .whoselhandfislatall'times upon the insulating handle 1 and remote from the live circuit. To remove the fuse 7"from its spring clips 8 the foregoingoperationis reversed, i. e., the handle'lis broughtV up to the lfuse, the..device 6 is :slipped thereoveriin zthe ,aforesaid manner, .and the `duse is ithen withdrawn Afrom-said clips.

` Variations may Jbe', resorted to within .the scope of thei'invention,andportions of the .improvements ,may used without I others.

Having fithus described 'my invention, 4I claim.:

.1. .A fuse puller yhaving l.the combination 'Withahandle ofvagpair ofoppositely disposed V`hooksprojecting Afrom said i handle being spaoe'diaparttqpermit insertion between 'themeofl a.v fuse-said Y hooks f being, adapted .to embrace the fuse when v.imparting .7.a fractional -turn to said :handle .about its .longi- `tudinal 5axis .while .-said fuse -i-s'between the heoks,.1andfapin projectingfrom saidl handle ...and locatedA between said hooks. beingI adapt- .ed to pierceitheifuse-when it is.l embraced.

2.-.A .fuse pullerhaving.thecombination .with a ihandle, .of .apair of oppositely dis- ;posed 'hooks ,projecting from said.V handle. be-

vmg spaced apartto permit insertion between .themof,` a7fuse,esaid hooksbeingfadapted .to embrace i.the fuse .when imparting aifractional .turn .to `said :handle about lits Alongitudinal axis vwhile said fuse r is :between ythe hooks, n pinfprojectingafromsaid handle and `loeated between emidihooks beingadapted. to pierce the fuse when it is embraced, and said hooks being. springyiin. the4 directionl toward Y said handle Ito ,positively l'enga-ge the ,fuse

upon .its-embraoement. l d

'3. A fuse .pullerhaving the combination 4with fa vhandle, -of la' pairx o'f oppositely 'fdis- .posed hooks ,projecting .from said handle a-being spaced ripartito-,permit .insertion between themoa fuse, -saidihooksibeing .adapted'to v embracefthefusewhen;imparting a `traction'- Yal tu'rmtoi-'said -handle about its longitudinal axis while said fueeds. between the hooks,.sai'd `handle 'having an insulated Ibod-y, Veach of said .hooks having a-shank imbedded `within said body, and said shanks beingseparated ffaem each .other by the material V0i" said Y dy. i

4. A ffuse :puller havingvthe combination .withsaihandlm l"of :a ,pair -zofbppositely disposed. hooks .projecting 'from saidzhandle bev:ing spaced apart .ftogpermitf insertionA between Vwithin, said body, natedlfromeach otherbythemateriel ofT said .body .and-said hooks .being springy .in the -to positively -one o'fmid lshan-lts.

5. A fuse puller having the combination with-a handle, of a pair of oppositely disposed hooksprojecting from said handle beting spaced apart'to` permit insertion between them ofeafuse, saidhooks beingtadapted to embrace :the-fuse 4when.impartin a fractional .turn tov said` handle aboutiits longitudinal axis while said fuseis betweenfthe hooks, saidhandlehaving an insulatedfbody, each ofsaid hooksrhaving afshank .imbedded said shanks .being sepadirection toward said handle Ito positively .engage the fuse upon itsembracement.

6. A fuse puller having theicombination with ahandle, ofa Vpair ofoppositelydisposed hooks projecting .from said handlezbeingspacedgapart to permit. insertion between them of a fuse, said hooks being adapted to embrace the .fuse when .imparting :a had tional 'l turn `.to .-saidV handlelabout Iits vlongitudinal :axis Ywhile -said Jinse Yis betWeentho hooks, a pinv projecting from-saidliandle and located betweenfsaid hooks'being adapted to pierce the fuse when lit is embraced, said handle having `an insulated, body, said -hooks having shanks imbedded within saidzbody,

said pin 'forming -an integral part of one of said shanks, and said hooks being springy engage -vthe fuse upon 'its /embracement.l

Signed at New York, .in Ythecounty of New York and State of New York, this 26th day of June,.A. D. 1930.

. BENJAMIN DQWIQK.V

noo 

